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Tenebrio molitor for food or feed: rearing conditions and the effects of pesticides on its performance

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Resumo:Abstract Tenebrio molitor is one of the most reared species of insect at industrial scale. The entire life cycle of mealworms takes place in the same ecosystem and the duration of the different stages is highly dependent on environmental and physical conditions such as temperature, relative humidity, diet and population density. Most of the environment conditions as well as diet have already been studied and are documented. Tenebrio molitor is deeply adaptable to extreme dry conditions, obtaining water from both food ingestion (even substances with low water content) and/or atmosphere, however larvae grows faster in moist conditions upper than 70%. At the industrial scale, water can be provided as pure water, through wet paper, fresh vegetables with high water content or even polymers capable of absorbing water (polyacrylamide). Chapter 1 is a review of the optimal conditions for Tenebrio molitor rearing. In Chapter 2, the effects of relative humidity and the effects of ingesting fresh vegetables contaminated with pesticides and polyacrylamide are evaluated. Relative humidity affected the development of mealworm larvae, with higher pupation and body mass attained at 65% and with faster growth rates attained at 40%. No effects of pesticides were detected. However, the chemical analysis of body mass will allow knowing if there was bioaccumulation.).
Autores principais:Ribeiro, Nuno Tiago Garrucho Martins
Assunto:Inseto Pesticida
Ano:2017
País:Portugal
Tipo de documento:dissertação de mestrado
Tipo de acesso:acesso aberto
Instituição associada:Instituto Politécnico de Coimbra
Idioma:inglês
Origem:Instituto Politécnico de Coimbra

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